Begin LTR

Scheduler.java

@@ -3,11 +3,11 @@ import java.io.*;
 
 public class Scheduler {
     //Address of File name relative to code. Replace with request for filename?
-    String fileName = "datafiles/datafile2.txt";
+    String fileName = "datafiles/datafile1.txt";
     
     LinkedList<Process> processList = new LinkedList<Process>();
     LinkedList<Integer> randomNum = new LinkedList<>();
-
+    int randomNumConsumed = -1; //Counter to track which "random numbers" have been used thus far.
 
     //Initialise Dispatcher time variable
     int disp;
@@ -49,6 +49,34 @@ public class Scheduler {
         }
         System.out.println("End Random.");
 
+        algorithmLTR();
+        algorithmLTR();
+        algorithmLTR();
+        algorithmLTR();
+        algorithmLTR();
+        algorithmLTR();
+        algorithmLTR();
+        algorithmLTR();
+        algorithmLTR();
+        algorithmLTR();
+        algorithmLTR();
+        algorithmLTR();
+        algorithmLTR();
+        algorithmLTR();
+        algorithmLTR();
+        algorithmLTR();
+        algorithmLTR();
+        algorithmLTR();
+        algorithmLTR();
+        algorithmLTR();
+        algorithmLTR();
+        algorithmLTR();
+        algorithmLTR();
+        algorithmLTR();
+        algorithmLTR();
+        algorithmLTR();
+        algorithmLTR();
+        algorithmLTR();        
     }
 
 /**
@@ -155,4 +183,95 @@ public class Scheduler {
             //e.printStackTrace();  //Optional, shows more data.
         }
     }    
+
+    public void algorithmFCFS()
+    {
+
+    }
+
+    public void algorithmSRT()
+    {
+
+    }
+
+    public void algorithmFBV()
+    {
+
+    }    
+
+    public void algorithmLTR()
+    {
+        // counter: used to track if we’ve found the winner yet
+        int counter = 0; 
+        int totalTickets = 0;
+        int winner = -1;
+        
+        //count the total number of tickets in play
+        for (int i = 0; i < processList.size() ; i++)
+        {
+           totalTickets += processList.get(i).getTickets();  
+        }
+
+        // winner: use some call to a random number generator to
+        // get a value, between 0 and the total # of tickets 
+        int winnerValue = returnRandomNum(totalTickets); 
+
+        for (int i = 0; i < processList.size(); i++)
+        {
+            counter = processList.get(i).getTickets();
+
+            if(counter > winnerValue)
+            {
+                winner = i;
+                break;
+            }
+        }
+
+        if(winner == -1)
+        {
+            System.out.println("No winner");
+        }
+        else
+        {
+            System.out.println("Winner: " + processList.get(winner).getId());
+        }
+        
+        // current: use this to walk through the list of jobs
+        
+        //node_t *current = head; 
+        /*
+        while (current) 
+        { 
+            counter = counter + current->tickets; 
+            if (counter > winner)
+            {
+                break; // found the winner 
+            }
+
+        current = current->next; 
+        // 'current' is the winner: schedule it...
+        }
+        */
+    }    
+
+    public int returnRandomNum(int totalTickets)
+    {
+        int randomValue = 0;
+        
+
+        //Loop back to begining. Probably could remove each consumed random number from the linked list.... but I don't want to right now.
+        if((randomNumConsumed+1) >= randomNum.size())
+        {
+            randomNumConsumed = 0;
+        }
+        else 
+        {
+            randomNumConsumed += 1;
+        }
+
+        randomValue = randomNum.get(randomNumConsumed) % totalTickets;
+        
+        return randomValue;
+    }
+
 }